CN1627162A - In-plane switching mode liquid crystal display device and method of fabricating the same - Google Patents
In-plane switching mode liquid crystal display device and method of fabricating the same Download PDFInfo
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- CN1627162A CN1627162A CNA2004100694146A CN200410069414A CN1627162A CN 1627162 A CN1627162 A CN 1627162A CN A2004100694146 A CNA2004100694146 A CN A2004100694146A CN 200410069414 A CN200410069414 A CN 200410069414A CN 1627162 A CN1627162 A CN 1627162A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
- G02F1/133757—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle with different alignment orientations
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136213—Storage capacitors associated with the pixel electrode
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
- G02F2201/122—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode having a particular pattern
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/52—RGB geometrical arrangements
Abstract
An in-plane switching mode liquid crystal display device includes: first and second substrates facing and spaced apart from each other; a gate line on the first substrate; a data line crossing the gate line to define a pixel region including a plurality of domains; a thin film transistor connected to the gate line and the data line; a common line parallel to and spaced apart from the gate line; a common electrode extending from the common line and having a ring shape; a pixel electrode connected to the thin film transistor and having a ring shape, the pixel electrode alternating with the common electrode; and a liquid crystal layer between the pixel electrode and the second substrate, the liquid crystal layer in neighboring domains having orientation directions different from each other.
Description
Technical field
The present invention relates to liquid crystal indicator.More particularly, relate to a kind of in-plane-switching mode liquid crystal display (IPS-LCD) device that has wherein improved the brightness of black.
Background technology
Because liquid crystal display (LCD) device has in light weight, slim body and characteristic low in energy consumption, so just developed into follow-on display device.Usually, the LCD device is non-emissive display devices, thereby it utilizes refringence to come display image by the optically anisotropic character of utilizing the liquid crystal material that inserts between array base palte and filter substrate.In dissimilar known liquid crystal indicators (LCD), having the thin film transistor (TFT) (TFT) with matrix arrangement and the thin film transistor (AM-LCD) of pixel electrode is the theme of great research and development, because these thin film transistors have high resolving power and show the superiority of moving image.
In conventional LCD device, because pixel electrode and public electrode lay respectively on infrabasal plate and the upper substrate, so the longitudinal electric field of between infrabasal plate and upper substrate, vertically inducting.Conventional LCD device has high transmission rate and high aperture ratio.But, use the shortcoming of the conventional LCD device of longitudinal electric field to be that their visual angle is very narrow.In order to solve the problem at narrow visual angle, proposed to switch in the face liquid crystal display (IPS-LCD) device.
The IPS-LCD device generally comprises an infrabasal plate, is furnished with a plurality of pixel electrodes and a plurality of public electrode on this infrabasal plate.Between upper and lower substrate, insert liquid crystal layer.Upper substrate is without any electrode.With reference to Fig. 1, come the mode of operation of typical IPS-LCD plate is elaborated.
Fig. 1 is the cut-open view that the principle of prior art IPS-LCD plate is shown.As shown in Figure 1, upper substrate 20 and infrabasal plate 10 separate each other, and insert a liquid crystal layer 30 between them.Usually upper substrate 20 and infrabasal plate 10 are called filter substrate and array base palte.On infrabasal plate 10, be provided with a public electrode 12 and a pixel electrode 14.Be provided with public electrode 12 and pixel electrode 14 to such an extent that make them parallel to each other.On the surface of upper substrate 20, usually a color-filter layer (not shown) is provided with the pixel electrode 14 of infrabasal plate 10 and public electrode 12 between regional corresponding.
Stride voltage that public electrode 12 and pixel electrode 14 the apply liquid crystal molecule 32 by liquid crystal layer 30 and produce face internal electric fields " IF ".Liquid crystal molecule 32 has positive dielectric anisotropy, so liquid crystal molecule 32 will be parallel to electric field " IF " arrangement.When between public electrode 12 and pixel electrode 14, not applying electric field, when promptly being in " off-position ", the longitudinal axis of liquid crystal (LC) molecule 32 is parallel to public electrode 12 and pixel electrode 14, and forms a limited angle with respect to public electrode 12 and pixel electrode 14.For example, the longitudinal axis of LC molecule 32 is parallel to public electrode 12 and pixel electrode 14 during off-position.But, during " "on" position ", when between public electrode 12 and pixel electrode 14, applying voltage, between public electrode 12 and pixel electrode 14, produced the transverse electric field " IF " on the surface that is parallel to infrabasal plate 10.Transverse electric field " IF " rearranges LC molecule 32, makes the longitudinal axis of LC molecule 32 aim at electric field " IF " coincidence.Because LC molecule switching direction and make simultaneously their longitudinal axis remain on the perpendicular plane of the direct-view direction of display in, so switching can allow display device to have wide visual angle in the face.For example, the visual angle can from perpendicular to the straight line of IPS-LCD plate along last-lower side to change 80 degree along the L-R side direction to 85 degree.
Fig. 2 A is the planimetric map according to the array base palte of prior art IPS-LCD device, and Fig. 2 B is the planimetric map according to the array base palte of another prior art IPS-LCD device.Public electrode and the pixel electrode of Fig. 2 A are arranged in bar paten, and the public electrode of Fig. 2 B and pixel electrode are arranged in the indentation pattern.As shown in Figure 2A and 2B, arrange select lines " GL " to such an extent that cross described accompanying drawing, arrange data line " DL " to such an extent that be substantially perpendicular to select lines " GL ".Also concentric line " CL " is arranged to such an extent that be parallel to select lines " GL " and cross described accompanying drawing, and separated with select lines " GL ".In each figure, contiguous select lines " GL " is provided with a thin film transistor (TFT) (TFT) " T " with the point of crossing of data line " DL ".
Shown in Fig. 2 A, stretch out a plurality of public electrodes 40 from concentric line " CL ", and a plurality of pixel electrodes 42 are connected to TFT " T ".Described a plurality of public electrode 40 and described a plurality of pixel electrode 42 are parallel to data line " DL " and replace each other.Owing in the IPS-LCD device, utilize the transverse electric field between public electrode 40 and the pixel electrode 42 to drive liquid crystal layer, so improved viewing angle properties.And, further improved viewing angle properties by adopting the multi-region structure.For example, proposed to have the structure of indentation pattern shown in Fig. 2 B.
Shown in Fig. 2 B, a plurality of public electrodes 50 alternate with a plurality of pixel electrodes 52.Described a plurality of public electrode 50 and described a plurality of pixel electrode 52 have the indentation pattern.Liquid crystal molecule between public electrode 50 and the pixel electrode 52 is along the both direction arrangement that has as the sweep on border, to constitute the multi-region structure.Thus, further improved the visual angle.But, because the sensing (director) of liquid crystal molecule differs from one another in comprising the IPS-LCD device of indentation pattern, thus inverse (color inversion) has appearred, and limited the visual angle.
Fig. 3 A and 3B are the synoptic diagram that illustrates according to the rearrangement state of the liquid crystal molecule in the normal black pattern IPS-LCD device with indentation pattern of prior art.Fig. 3 A shows " off-position " ordered state when not applying voltage, and Fig. 3 B shows " "on" position " ordered state when applying voltage.
Direction of orientation among Fig. 3 A and Fig. 3 B fades to 90 ° from 270 °.As shown in Fig. 3 A, when not applying voltage, the major axis of liquid crystal molecule 60 " A1 " is corresponding to described direction of orientation.In the case, gamut (color shift) may take place.For example, when color should be black,,, may observe shallow basket look promptly from 0 ° to 180 ° along the minor axis " A2 " of liquid crystal molecule 60.It is poor that this shallow basket look comes from the major axis " A1 " and the delay (retardation) between the minor axis " A2 " of liquid crystal molecule 60, thereby made the black deterioration.But when when two area pixel apply voltage, shown in Fig. 3 B, liquid crystal molecule 60 is symmetric offset spread in two zones " D1 " and " D2 ".Therefore, according to the visual angle, improved the demonstration (appearance) of black slightly.
Summary of the invention
Therefore, the present invention aims to provide a kind of IPS-LCD device, and it has overcome one or more problem that causes owing to the restriction of prior art and shortcoming basically.
Advantage of the present invention has provided a kind of IPS-LCD device and manufacture method thereof, has wherein improved the brightness characteristics of black.
Another advantage of the present invention has provided a kind of IPS-LCD device that has increased contrast.
Another advantage of the present invention has provided a kind of IPS-LCD device that has strengthened the visual angle.
Supplementary features of the present invention and advantage will be set forth in the following description, are clearly according to instructions partly, perhaps can learn by implementing the present invention.Realize and obtain these and other advantages of the present invention by the structure of being specifically noted in following explanatory note and claims and the accompanying drawing.
In order to realize these and other advantage, provide a kind of in-plane switching mode liquid crystal display device according to the embodiment of principle of the present invention.This in-plane switching mode liquid crystal display device comprises: first substrate and second substrate that face with each other and separate; Select lines is positioned on first substrate; Data line, intersecting with this select lines comprises a pixel region in a plurality of zones with qualification; Thin film transistor (TFT) is connected to described select lines and described data line; Concentric line is parallel to described select lines and separates with this select lines; Public electrode stretches out and has an annular shape from described concentric line; Pixel electrode is connected to described thin film transistor (TFT) and has annular shape, and this pixel electrode and described public electrode alternate; And, liquid crystal layer, between described pixel electrode and described second substrate, the liquid crystal layer in the adjacent area has the direction of orientation that differs from one another.
On the other hand, a kind of in-plane switching mode liquid crystal display device comprises: first substrate and second substrate that face with each other and separate; Many select liness are positioned on described first substrate; Many data lines intersect to limit a plurality of sub-pixel area with described many select liness; Thin film transistor (TFT) is connected to described select lines and described data line; Concentric line is parallel to described select lines and separates with this select lines; Public electrode stretches out and has an annular shape from described concentric line; Pixel electrode is connected to described thin film transistor (TFT) and has annular shape, and this pixel electrode and described public electrode alternate; And, liquid crystal layer, between described pixel electrode and described second substrate, the liquid crystal layer in the adjacent sub-pixel areas has the direction of orientation that differs from one another.
On the other hand, a kind of method of making in-plane switching mode liquid crystal display device comprises: first substrate and second substrate are faced with each other and separate; On described first substrate, form select lines; Form the data line that intersects with described select lines, comprise the pixel region in a plurality of zones with qualification; Formation is connected to the thin film transistor (TFT) of described select lines and described data line; Form concentric line parallel with described select lines and that separate; The public electrode of annular shape is stretched out and has in formation from described concentric line; The pixel electrode that formation is connected to described thin film transistor (TFT) and has annular shape, this pixel electrode and described public electrode alternate; Engage described first substrate and described second substrate, make described first real estate separate to described second substrate and with this second substrate; Between described first substrate and described second substrate, form liquid crystal layer; And, make the aligned liquid crystal layer in the adjacent area must have the direction of orientation that differs from one another.
On the other hand, a kind of method of making in-plane switching mode liquid crystal display device comprises: form many select liness on first substrate; Form many data lines that intersect with these many select liness, to limit a plurality of sub-pixel area; Formation is connected to the thin film transistor (TFT) of described select lines and described data line; Form concentric line parallel with described select lines and that separate; The public electrode of annular shape is stretched out and has in formation from described concentric line; The pixel electrode that formation is connected to described thin film transistor (TFT) and has annular shape, this pixel electrode and described public electrode alternate; Engage described first substrate and described second substrate, make described first substrate and described second real estate to and separate; Between described first substrate and described second substrate, form liquid crystal layer; And, make the aligned liquid crystal layer in the adjacent sub-pixel areas must have the direction of orientation that differs from one another.
Be to be understood that above-mentioned general description and detailed description subsequently all are exemplary and explanat, be used to provide of the present invention further specifying as claimed in claim.
Description of drawings
Included accompanying drawing helps further to understand the present invention, is merged in the present invention and constitutes a part of the present invention, shows embodiments of the invention, and is used for explaining the principle of invention with instructions.
Fig. 1 is the cut-open view that the principle of prior art IPS-LCD plate is shown.
Fig. 2 A is the planimetric map according to the array base palte of described prior art IPS-LCD device.
Fig. 2 B is the planimetric map according to the array base palte of another prior art IPS-LCD device.
Fig. 3 A and 3B are the synoptic diagram that illustrates according to the state that rearranges of the liquid crystal molecule in the normal black pattern IPS-LCD device with indentation pattern of prior art.
Fig. 4 is the planimetric map that illustrates according to the IPS-LCD device of first embodiment of the invention.
Fig. 5 is the planimetric map that illustrates according to the IPS-LCD device of second embodiment of the invention.
Embodiment
Introduce now the embodiment that goes out shown in the present in detail, the example of the embodiment of the invention shown in the drawings.All the time represent same or analogous part with similar label in the accompanying drawings as much as possible.
Fig. 4 is the planimetric map that illustrates according to the IPS-LCD device of the first embodiment of the present invention.Fig. 4 shows a pixel region of IPS-LCD device.Arrange select lines 112 to such an extent that cross Fig. 4, arrange data line 128 to such an extent that be substantially perpendicular to select lines 112.Paired select lines 112 and data line 128 define a pixel region " P ".Concentric line 114 is parallel to select lines 112 and separates with select lines 112.A thin film transistor (TFT) (TFT) " T " is arranged in the point of crossing of contiguous select lines 112 and data line 128.The public electrode 120 that comprises the first and second public electrode pattern 120a and 120b stretches out from concentric line 114.The pixel electrode 138 that comprises the first and second pixel electrode pattern 138a and 138b is connected to TFT " T ".Pixel electrode 138 alternates with public electrode 120.
The first public electrode pattern 120a has one and is adjacent to the outside that is essentially rectangle of boundary member of pixel region " P " and the inboard of a circle.The second public electrode pattern 120b has annular shape, and is disposed in the first public electrode pattern 120a.The first pixel electrode pattern 138a have annular shape and be disposed in the first public electrode pattern 120a and the second public electrode pattern 120b between.The second pixel electrode pattern 138b has disc-like shape, and is disposed in the second public electrode pattern 120b.The first electrode for capacitors 140a and the second electrode for capacitors 140b overlap with the bottom of the first public electrode pattern 120a and the top of the first public electrode pattern 120a respectively.Pixel connecting line 141 combines the first electrode for capacitors 140a and the second electrode for capacitors 140b.The first pixel electrode pattern 138a and the second pixel electrode pattern 138b stretch out from pixel connecting line 141.
Can use one of rubbing manipulation, optical orientation method (photo-orientation methode), plasma method, ion beam and beam methods to carry out orientation process.In plasma method, plasma will physically clash into alignment films.In beam methods, the ionic bombardment alignment films.In ion beam, the electron impact alignment films.
The direction of motion of liquid crystal molecule 150 when the arrow of contiguous liquid crystal molecule 150 is represented to apply voltage among Fig. 4.The upper and lower polarization plates of the polarization axle that having is perpendicular to one another intersects can be used for the IPS-LCD device according to first embodiment of the invention.For example, upper and lower polarization plates has 0 ° to 180 ° polarization axle and 90 ° to 270 ° polarization axle respectively.
Fig. 5 is the planimetric map that IPS-LCD device according to a second embodiment of the present invention is shown.Fig. 5 shows a pixel region that comprises four sub-pixel area.As shown in Figure 5, the IPS-LCD device comprises red, green, blue with square shape and white sub-pixels district " SPR ", " SPG ", " SPB " and " SPW ".Red, green, blue and white sub-pixels district " SPR ", " SPG ", " SPB " and " SPW " constitute a pixel region " PX ".At area is in the high resolving power UXVGA model of 1600mm * 1200mm, because a sub-pixel area diminishes, can carry out orientation process, makes the liquid crystal molecule in adjacent sub-pixel areas have the ordered state of the delay between these adjacent sub-pixel areas of compensation.For example, in red and white sub-pixels district " SPR " and " SPW ", can be along become 90 ° direction (or 135 ° of directions) to carry out orientation process with respect to the direction parallel with select lines; And in green and blue subpixels district " SPG " and " SPB ", can carry out orientation process along 0 ° of direction (or 45 ° of directions).Therefore, improved the brightness characteristics that does not apply the black under the voltage condition.Can use one of rubbing manipulation, optical orientation method, plasma method, ion beam and beam methods to carry out orientation process.Although not shown in the drawings, public electrode and pixel electrode can have oval in shape.
In IPS-LCD device according to the present invention, carry out orientation process, make the liquid crystal molecule in when not applying voltage adjacent area or the adjacent sub-pixel areas have the ordered state of compensation delay therebetween.Therefore, in multizone pixel or a plurality of sub-pixel, weakened the gamut effect.Thus, improved black.And, be shaped as circular public electrode and be shaped as circular pixel electrode because IPS-LCD has, so the guides of liquid crystal molecule is all identical in all directions.Therefore, improved contrast and visual angle, and all do not had inverse in any angle.
Those skilled in the art should be understood that under the condition that does not depart from the spirit or scope of the present invention, can carry out various modifications and variations to IPS-LCD device of the present invention.Therefore, the present invention falls into covering the various modifications and variations in the scope of claims and equivalent thereof.
Claims (17)
1, a kind of in-plane switching mode liquid crystal display device comprises:
First substrate and second substrate face with each other and separate;
Select lines is positioned on described first substrate;
Data line, intersecting with described select lines comprises a pixel region in a plurality of zones with qualification;
Thin film transistor (TFT) is connected to described select lines and described data line;
Concentric line, parallel with described select lines and separate;
Public electrode stretches out and has an annular shape from described concentric line;
Pixel electrode is connected to described thin film transistor (TFT) and has annular shape, and this pixel electrode and described public electrode alternate; And
Liquid crystal layer, between described pixel electrode and described second substrate, the described liquid crystal layer in a plurality of adjacent areas has the direction of orientation that differs from one another.
2, device as claimed in claim 1, also comprise: first electrode for capacitors that is connected to described thin film transistor (TFT), with second electrode for capacitors of described public electrode overlapping, and the pixel connecting line that makes up described first electrode for capacitors and described second electrode for capacitors.
3, device as claimed in claim 2, wherein, described first electrode for capacitors, described second electrode for capacitors, described pixel connecting line and described pixel electrode are made by identical materials and are positioned at same one deck.
4, device as claimed in claim 2, wherein, described pixel region is divided into first to fourth zone by described public electrode and described pixel connecting line.
5, device as claimed in claim 4, wherein, first and second directions of orientation of the liquid crystal layer in two adjacent zones are perpendicular each other.
6, device as claimed in claim 5, wherein, described first direction of orientation is with respect to a direction in 0 ° of direction of the direction parallel with described select lines and the 45 ° of directions, described second direction of orientation is a direction in 90 ° of directions and the 135 ° of directions.
7, device as claimed in claim 6, also comprise: first polarization plates in described first substrate outside and second polarization plates in described second substrate outside, wherein, described first polarization plates has 90 ° to 270 ° first direction, and described second polarization plates has 0 ° to 180 ° second direction.
8, device as claimed in claim 1 wherein, uses a kind of method in rubbing manipulation, optical orientation method, plasma method, ion beam and the beam methods to come described liquid crystal layer is orientated.
9, a kind of in-plane switching mode liquid crystal display device comprises:
First substrate and second substrate face with each other and separate;
Many select liness are positioned on described first substrate;
Many data lines intersect to limit a plurality of sub-pixel area with described many select liness;
Thin film transistor (TFT) is connected to described select lines and described data line;
Concentric line, parallel with described select lines and separate;
Public electrode stretches out and has an annular shape from described concentric line;
Pixel electrode is connected to described thin film transistor (TFT) and has annular shape, and this pixel electrode and described public electrode alternate; And
Liquid crystal layer, between described pixel electrode and described second substrate, described liquid crystal layer has the direction of orientation that differs from one another in adjacent sub-pixel area.
10, device as claimed in claim 9, wherein, each sub-pixel area has square shape.
11, device as claimed in claim 10, wherein, four adjacent sub-pixel area show redness, green, blueness and white respectively, and constitute a pixel region.
12, device as claimed in claim 11, wherein, first and second directions of orientation of the liquid crystal layer in two adjacent sub-pixel area are perpendicular each other.
13, device as claimed in claim 12, wherein, described first direction of orientation is with respect to a direction in 0 ° of direction of the direction parallel with described select lines and the 45 ° of directions, and described second direction of orientation is a direction in 90 ° of directions and the 135 ° of directions.
14, device as claimed in claim 13, also comprise: first polarization plates in described first substrate outside and second polarization plates in described second substrate outside, wherein, described first polarization plates has 90 ° to 270 ° first direction, and described second polarization plates has 0 ° to 180 ° second direction.
15, device as claimed in claim 9 wherein, uses a kind of in rubbing manipulation, optical orientation method, plasma method, ion beam and the beam methods that described liquid crystal layer is orientated.
16, a kind of method of making in-plane switching mode liquid crystal display device comprises:
First substrate and second substrate are faced with each other and separate;
On described first substrate, form a select lines;
Form a data line, this data line and described select lines intersect and comprise a pixel region in a plurality of zones with qualification;
Formation is connected to a thin film transistor (TFT) of described select lines and described data line;
Form a concentric line parallel with described select lines and that separate;
A public electrode of annular shape is stretched out and has in formation from described concentric line;
Formation is connected to described thin film transistor (TFT) and has a pixel electrode of annular shape, and this pixel electrode and described public electrode alternate;
Engage described first substrate and described second substrate, make described first real estate separate to described second substrate and with described second substrate;
Between described first substrate and described second substrate, form a liquid crystal layer; And
Liquid crystal layer in a plurality of adjacent areas is orientated, so that the liquid crystal layer in these a plurality of adjacent areas has the direction of orientation that differs from one another.
17, a kind of method of making in-plane switching mode liquid crystal display device comprises:
On first substrate, form many select liness;
Form many data lines, these many data lines and described many select liness intersect to limit a plurality of sub-pixel area;
Formation is connected to a thin film transistor (TFT) of each bar in described many select liness and described many data lines;
Form a concentric line parallel with described select lines and that separate;
A public electrode of annular shape is stretched out and has in formation from described concentric line;
Formation is connected to described thin film transistor (TFT) and has a pixel electrode of annular shape, and this pixel electrode and described public electrode alternate;
Engage described first substrate and one second substrate, make described first real estate separate to described second substrate and with described second substrate;
Between described first substrate and described second substrate, form a liquid crystal layer; And
Liquid crystal layer in a plurality of adjacent sub-pixel area is orientated, so that the liquid crystal layer in these a plurality of adjacent sub-pixel area has the direction of orientation that differs from one another.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030090413A KR100643039B1 (en) | 2003-12-11 | 2003-12-11 | In-Plane Switching Mode Liquid Crystal Display Device |
| KR090413/2003 | 2003-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1627162A true CN1627162A (en) | 2005-06-15 |
| CN100356254C CN100356254C (en) | 2007-12-19 |
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| CNB2004100694146A Expired - Fee Related CN100356254C (en) | 2003-12-11 | 2004-06-28 | In-plane switching mode liquid crystal display device and method of fabricating the same |
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| US (2) | US7177001B2 (en) |
| JP (1) | JP4126032B2 (en) |
| KR (1) | KR100643039B1 (en) |
| CN (1) | CN100356254C (en) |
| GB (1) | GB2409094B (en) |
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Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7663607B2 (en) | 2004-05-06 | 2010-02-16 | Apple Inc. | Multipoint touchscreen |
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Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5069813A (en) | 1990-12-10 | 1991-12-03 | Bell Communications Research, Inc. | Electrically controlled polarization-independent liquid crystal fresnel lens |
| JPH06324337A (en) | 1993-03-15 | 1994-11-25 | Toshiba Corp | Liquid crystal display device |
| US5610743A (en) | 1995-10-30 | 1997-03-11 | United Microelectronics Corporation | Liquid crystal display including concentric shapes and radial spokes which has an improved viewing angle |
| TW329500B (en) * | 1995-11-14 | 1998-04-11 | Handotai Energy Kenkyusho Kk | Electro-optical device |
| JPH09230311A (en) | 1995-11-14 | 1997-09-05 | Semiconductor Energy Lab Co Ltd | Display device |
| JPH09325450A (en) | 1996-06-04 | 1997-12-16 | Fuji Photo Film Co Ltd | Silver halide photographic material |
| JPH09325340A (en) | 1996-06-07 | 1997-12-16 | Toshiba Corp | Liquid crystal display element |
| US6184961B1 (en) * | 1997-07-07 | 2001-02-06 | Lg Electronics Inc. | In-plane switching mode liquid crystal display device having opposite alignment directions for two adjacent domains |
| KR19990048947A (en) | 1997-12-11 | 1999-07-05 | 김영환 | Liquid Crystal Display Device with Electrode Eliminating Color Change and Realizing Wide Viewing Angle |
| KR100313946B1 (en) | 1997-12-30 | 2002-04-06 | 구본준, 론 위라하디락사 | In plain switching mode liquid crystal display device |
| KR100357216B1 (en) | 1999-03-09 | 2002-10-18 | 엘지.필립스 엘시디 주식회사 | Multi-domain liquid crystal display device |
| TWI251697B (en) * | 1999-05-26 | 2006-03-21 | Matsushita Electric Ind Co Ltd | Liquid crystal display element and producing method thereof |
| KR100601173B1 (en) * | 1999-06-30 | 2006-07-13 | 삼성전자주식회사 | a liquid crystal display |
| JP2001296523A (en) * | 2000-04-17 | 2001-10-26 | Sony Corp | Reflection type liquid crystal display |
| KR100380222B1 (en) * | 2000-10-13 | 2003-04-16 | 엘지.필립스 엘시디 주식회사 | array substrate for in-plane switching mode liquid crystal display device |
| KR100587217B1 (en) | 2000-12-29 | 2006-06-08 | 엘지.필립스 엘시디 주식회사 | A substrate for IPS mode Liquid crystal display device and method for fabricating the same |
| JP2002229046A (en) | 2001-01-30 | 2002-08-14 | Hitachi Ltd | Liquid crystal display |
| JP3656103B2 (en) | 2001-09-19 | 2005-06-08 | 国立大学法人富山大学 | Liquid crystal display element |
| JP4080245B2 (en) | 2001-10-12 | 2008-04-23 | シャープ株式会社 | Liquid crystal display |
| KR100835975B1 (en) * | 2001-12-28 | 2008-06-09 | 엘지디스플레이 주식회사 | An array substrate for In-Plane switching mode LCD and the method for fabricating the same |
| KR100643039B1 (en) * | 2003-12-11 | 2006-11-10 | 엘지.필립스 엘시디 주식회사 | In-Plane Switching Mode Liquid Crystal Display Device |
| US7227607B2 (en) * | 2003-12-11 | 2007-06-05 | Lg.Philips Lcd Co., Ltd | Array substrate for in-plane switching mode liquid crystal display device and method of fabricating the same |
| KR100564218B1 (en) * | 2003-12-11 | 2006-03-28 | 엘지.필립스 엘시디 주식회사 | A Panel for In-Plane Switching mode Liquid Crystal Display Device and Method for fabricating the same |
-
2003
- 2003-12-11 KR KR1020030090413A patent/KR100643039B1/en not_active IP Right Cessation
-
2004
- 2004-04-15 US US10/824,612 patent/US7177001B2/en not_active Expired - Fee Related
- 2004-05-07 GB GB0410251A patent/GB2409094B/en not_active Expired - Fee Related
- 2004-06-28 CN CNB2004100694146A patent/CN100356254C/en not_active Expired - Fee Related
- 2004-06-29 JP JP2004192296A patent/JP4126032B2/en not_active Expired - Fee Related
-
2007
- 2007-01-03 US US11/648,641 patent/US7561237B2/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103635857A (en) * | 2011-07-25 | 2014-03-12 | 西铁城控股株式会社 | Optical device, projector, production method, and production support device |
| US9285601B2 (en) | 2011-07-25 | 2016-03-15 | Citizen Holdings Co., Ltd. | Optical device, projector, manufacturing method, and manufacturing support apparatus |
| CN103635857B (en) * | 2011-07-25 | 2017-12-15 | 西铁城时计株式会社 | Optics, projector, manufacture method |
| WO2015103870A1 (en) * | 2014-01-13 | 2015-07-16 | 京东方科技集团股份有限公司 | Display substrate and display device |
| US9500918B2 (en) | 2014-01-13 | 2016-11-22 | Boe Technology Group Co., Ltd. | Display substrate and display device having a decreased driving voltage |
| CN108563048A (en) * | 2018-04-04 | 2018-09-21 | 昆山龙腾光电有限公司 | Peep-proof display panel |
| CN108563048B (en) * | 2018-04-04 | 2021-09-21 | 昆山龙腾光电股份有限公司 | Peep-proof display panel |
Also Published As
| Publication number | Publication date |
|---|---|
| US20050128406A1 (en) | 2005-06-16 |
| US7561237B2 (en) | 2009-07-14 |
| JP4126032B2 (en) | 2008-07-30 |
| GB2409094B (en) | 2005-11-30 |
| JP2005173538A (en) | 2005-06-30 |
| US7177001B2 (en) | 2007-02-13 |
| US20070109480A1 (en) | 2007-05-17 |
| KR20050058156A (en) | 2005-06-16 |
| GB0410251D0 (en) | 2004-06-09 |
| CN100356254C (en) | 2007-12-19 |
| GB2409094A (en) | 2005-06-15 |
| KR100643039B1 (en) | 2006-11-10 |
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